Journal of Inorganic Materials

• Research Paper • Previous Articles    

Microstructure and Mechanism of Pack Siliconizing on Niobium

LI Ming1; SONG Li-Xin1; LE Jun1; SONG Xue-Ping2; GUO Zhan-Cheng2   

  1. 1. Research & Development Center for Special Inorganic Materials; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2.Institute of Process Engineering; Beijing 100080; China
  • Received:2004-04-29 Revised:2004-06-10 Published:2005-05-20 Online:2005-05-20

Abstract: NbSi2 coating was formed on niobium by halide-activated pack cementation process. The microstructure of the as-formed coating and the possible reactions of Si deposition were investigated. The results indicate that the as-formed coating consists of single phase of NbSi2- SiF2 is responsible for the transportation and deposition of Si in the pack.

Key words: siliconizing, coating, niobium, niobium disilicide

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